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Hardware How to Overclock the Intel Core i5-2500K

Discussion in 'Article Discussion' started by Claave, 7 Jan 2011.

  1. Claave

    Claave You Rebel scum

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  2. Cei

    Cei pew pew pew

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    Nice to see EFI finally being used, no more wall of bright blue! Took their time though, Apple have been using EFI since 2006, and even HP were using it back 2002 for Itanium 2.

    Plus that's a tasty OC. Hope the rest of SB is this good, or is this the standout CPU?
     
  3. Claave

    Claave You Rebel scum

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  4. wuyanxu

    wuyanxu still wants Homeworld 3

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    how's this new load-line calibration implemented?

    with i7 860, it's horrible and very unreliable. it sustains voltage at what you've set in the BIOS, however, due to Intel's design spec, voltage drop should be expected. so, when try to overclock the 860 with turbo mode v2 enabled, you will get random crashes when running single or multiple threaded applications. end of the day, disabling LLC and sticking to Intel spec is the best way forward.



    other useful piece of information you could have included in this great article is how to test turbo mode stability. i found running overnight loops of CPC benchmark works great, because it have a lot of different processor load levels to test all possible cases.
     
  5. Margo Baggins

    Margo Baggins I'm good at Soldering Super Moderator

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    I have differing understandings of Vdrop and Vdroop...

    Vdrop = The difference between voltage set in the bios and the actual voltage - loadline calibration makes the actual voltage match that set in the bios.

    Vdroop = the amount the voltage drops as the processor comes on to load.

    These are definately two different things, as i have done hard mods for both of them in the past.
     
  6. robump

    robump Member

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    That efi on the asus look pretty nice!! Bit of a difference from the old bios!
     
  7. Xir

    Xir Well-Known Member

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    With your Overclock, is "Turbo-boost" still enabled?
    (In other words, doe the CPU still ramp down when idling, and Up when needed, just to a higher level?)

    Secondly, if I look for an Overclock WITHOUT touching the Voltages...I might probably just as well go with the on-motherboard-auto-overclocking-features, such as the Turbo-Key-II on the Asus, right?
    If not, what would be a recommended stable overclock without touching the voltages?
     
  8. wuyanxu

    wuyanxu still wants Homeworld 3

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    In my experience, loadline calibration also reduces Vdroop and eliminates Vdrop. What I don't understand is that both are pretty much constant for each motherboard, so why can't people simply set a higher VCore in BIOS?

    Intel spec does allow for some Vdrop and Vdroop, if those motherboards are outside that spec, then they will not be on the shelves.

    Not following design spec by eliminating Vdroop when the processor is underload will result in unstable half or lightly loaded processor, Due to turbo boosts.
     
  9. DbD

    DbD Member

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    Nice guide, I'll keep this handy for when I get my hands on a cpu :)
     
  10. Margo Baggins

    Margo Baggins I'm good at Soldering Super Moderator

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    I completely agree :) I was refering to the article where it states some people wrongly refer to it as Vdroop - when in my experience, that is Vdroop. I think i misread it or the article is slightly misleading there in terminology - but is no biggy :)
     
  11. bogie170

    bogie170 New Member

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    Where and when can we buy these processors? I cant find them anywhere.
     
  12. Fingers66

    Fingers66 Kiwi in London

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    Everywhere. Monday.
     
  13. bogie170

    bogie170 New Member

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    Even McDonalds?!!
     
    Fingers66 likes this.
  14. SaNdCrAwLeR

    SaNdCrAwLeR New Member

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    even in the garbage bin behind that italian restaurant over there! *points*
     
  15. bogie170

    bogie170 New Member

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    Thanks for info i'll keep my eyes open on monday!
     
  16. Fingers66

    Fingers66 Kiwi in London

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    :D

    To elaborate, try the following places on Monday...

    CCL Online
    Scan
    Overclockers
    Aria
    Novatech
    Yoyotech
    Ebuyer

    ...and compare the prices. Don't forget to include the delivery options when comparing.
     
  17. mecblade

    mecblade 14 year old Technophile

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    *sighs at a fellow southamptoner's comment*
     
  18. frontline

    frontline Punish Your Machine

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    Not at dabs.com then? :)
     
  19. ChromeX

    ChromeX New Member

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    10KHz isnt equal to 0.1 MHz :p good review though, glad to see the premium boards arent as expensive as I feared. Come payday its a 2500k and a asus mobo for me :D
     
  20. frontline

    frontline Punish Your Machine

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